package com.hcx.reggie.config;

import com.hcx.reggie.interceptor.LoginInterceptor;
import com.hcx.reggie.utils.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.List;

@Configuration
@Slf4j
public class WebMvcConfig implements WebMvcConfigurer {

    /**
     * 检查用户是否登录
     * @param registry
     */
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("开始进行静态资源映射");
        registry.addResourceHandler("/backend/**")
                .addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**")
                .addResourceLocations("classpath:/front/");
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {

        String[] urls = new String[]{
                "/employee/login",
                "/employee/logout",
                "/backend/**",
                "/front/**",
                "/user/sendMsg",
                "/user/login"
        };
        registry.addInterceptor(new LoginInterceptor()).addPathPatterns("/**").excludePathPatterns(urls);
    }

    /**
     * 扩展mvc的消息转换器
     * @param converters
     */
    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        //创建消息转换器对象

        MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackon将Java对象转成json
        mappingJackson2HttpMessageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器追加到mcx框架的转换器容器中List<HttpMessageConverter<?>> converters
        converters.add(0,mappingJackson2HttpMessageConverter);

    }

}
